Home / 142,286.81-213,438.57-53,541.08

Finding the Fourth Proportional to 142,286.81, 213,438.57 and 53,541.08

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Solution

The fourth proportional to 142,286.81, 213,438.57 and 53,541.08 is: 80,314.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,286.81 : 213,438.57 = 53,541.08 : x
  2. Step 2: Convert to fraction form
    142,286.81/213,438.57 = 53,541.08/x
  3. Step 3: Cross multiply
    142,286.81x = 213,438.57 × 53,541.08
  4. Step 4: Simplify right side
    142,286.81x = 11,427,731,884.27
  5. Step 5: Solve for x
    x = 11,427,731,884.27/142,286.81
  6. Step 6: Final answer
    x = 80,314.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.